@book { TrkischeKolonieimWandel,
    title = "Türkische Kolonie im Wandel",
    author = "Rüdiger {Wurr} and Udo {Gerigk} and Uwe {Törper} and Alfred {Sielken}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1081001"
}